Hydraulic-power installation.



' draulic-Povver` Installations, o f which NITED STATES PATENT OFFICE.

ARNOLD Prev, or MILWAUKEE, WIBGONSIN, 519mm To ALLIs-cxunxnnsMANUFACTURING coMPANY, 0F MILWAUKEE. WGOHIN, A CORPORATION or DELAWARE.

HYDRAULIC-POWEB INBTALLATION.

Speolilcatlon ot Letters Patent.

Patented Oct. 29, 1918.

To all 'whom it may cower'n.' Be it known that I Annone Prac, a. citizenof the Republic of Switzerland residing at Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented a cer tain new anduseful Improvement in e following is a specification.

This invention relates to improvements in the construction of hydraulicpower installations.

An object of the invention is to provide a hydraulic power installationwhich 1s simple and compact in construction and highly eilicient inoperation. One of the more specific objects is to provide an arrangementof hydraulic energy-translating devices or turbines which will/reduce toa minimum the power house space required for an install/:(1- tion ofmaximum capacity. A further ject is to provide an arrangement ofhydraulic turbines which may be readily constructed and which willpermit utilization ot a sin le governor for controllin a plurality ofindependent turbines. Stil another object is to provide a common inletflume for delivering motive Huid to two oppositely rotatable turbineshavin noncoincident een* tral planes perpendicu ar to their axes 'ofrotation.

A clear conception of an embodiment of the invention `may be had byreferring to the drawing accompanying and forming a part of thisspecification in which like characters designate the same or similarparts in the various views.

Figure 1 is' a fra mentari; vertical section l through the power iouseof a hydraulic turbrlie mtallatifon. h .t l t.

l is a ragmen ary orizon a sec ion thrggh the power house of a hydraulicturbine lnstallation, the section bein taken alon the linen-II o fFig. 1loo ing in V the'. irection of the arrows.

While the invention has been disclosed as applied in a turbineinstallation comprisin v a plurality of vertical hydraulic turbines othe Francis type, it should be understood that the invention is alsoapplicable to other types of turbines and is not limited toinstallations in which the units are vertically disposed. The inventionis, moreover, not necessarily limited to installations in which singlerunner turbines are employed.

"means of a wall 11.

In the drawing, the power house 23 is provided with a series of parallelinlet iiumes 9 of the open type, which arc communicable with a commonpcnstoek 18 through gates 19. The usual gate-opening,r mechanisms 20 andgrids 2l for preventing the entranceof undesirable foreign material tothe turbines, are provided. Within each of the inlet ilumes 9 is locateda pair of single vertical Francis turbines 2, 3. Each of the upstreamturbines 2 is rotatable about. a vertical shaft 6 and is located ai ulower level than the corresponding downstream turbine 3 which isrotatable about a vertical shaft 7. The location of these turbines 2. 3is such that their central planes perpendicular to the shafts 6, 7 arenoncoincidcnt. whereby a direct and ./unobsiructeil flou' to eachturbine results.

The turbines 2. 3 are oppositely rotatable, the water being guided intothe turbine 2 by means of a wall 10, and into the turbine 3 by The walls10, 11 are formed to properly direct the water into the turbines` and ineffect produce spiral intake casings for the respective turbines 2, 8.

The turbines 2, 3 communicate with vertcally disposed discharge drafttubes 12, 13 which are of substantially equal vertical lengths and ofsubstantially like construction throughout.. A drain pipe 22 forming a'means of communication between one of the draft tubes 12 and thecorrespondin r intake flume 9, serves to drainthe intake unie 9 when thecorresponding gate 19 is closed. The draft tubes 1,2` 13 cormnunicatewith a common discharge Hume 14 which communicates directly with acommon tail race 15. The formation of the draft tubes 12, 13 ai d theirconnection with the discharge ilunie i4 is such that minimuminterference `of the streams discharged from the two draft tubes,results.

The turbine 2 is direct connected by means of its shaft 6 to anfelectriegenerator 4, while the Vturbine 3 is direct connected by means of itsshaft 7 to an electric generator 5. The gate mechanism ofthe turbine 2is controlled ymeans ofy aregulator 8 acting through regulatn 'mechanism16, while the atc mechanism of the turbine 3 is controllo by the sameregulator 8` acting through regufrom the penstoek 18 is admitted to theintake thnues l. The wat-e1' passing through each ot' the titanes ftenters the gatory of the turbines 2, 3 and after delivering power to` 5these turbines is discharged through tht" draft tubes` l2. lb into thetail race 15 through the eonnnon The entering' water' is given aninitial swirl in the proper direction bi means bf walls ll which asabove statel. are formed to direct the water propel-lv in accordancewith the rotation ofthe ad'aeent. turbines.

Each of the inlet lunies 9 is of like conlstruction and has therein twoturbines 2, 3 and associated elements. The turbines within each of theflames are both horizontally and vertically on opposite sides of thecenter line of the flume. This arrangement of the turbines reducesminimum interference of the supplv streams and insures a full supply ofwater to each of the turbines. It will be noted that by locating theturbines at different levels. substantially two independent superposedinlet streams are prodneed and interference of the streams tlow iin;r toeach turbine` is avoided. By arranfl ing;r the turbines willi their axes0f rotation on opposite sides of a vertical plane passing thecenterline-of the Hume 9, the Water is gnidedbetween the/turbine` axesand iut isodirectional flow of water is secured between the'oppositelyrotating"r runners. The location ofthe turbines as disclosed, alsopermits discharge of the water from the draft tubes l2, 13 with minimuminterference of the out-[lowing` streams. This` arrangen'teut, besidesbeing simple, is compact. therelr'v permitting installation of thegreatest'` number of units within a given area.

It should be understood that it is not desircd to be limited to theexact, details` of construction herein shown and described.' for variousmodifications within the scope of the appended claims ma)| occur to aperson skilled in the art. i "It, is claimed and desired tosecme byLettei'h' Patent: `f f vg1. Iii combination, two oppositeljr rotatableturbines havin@noireoincidehtrentral 'tilz'nes perpendicular to their'a'xtesiot'` rota` inlettame for' stiluulyiug e e liioni. and a. commonI luid `to said' turbines in paralleli "2.; Inu enn'ibihatji'on, twobpp'ositelv; rotatlle turbines havin" parallel axes yof rbta-` `tion.the central turbineplanesl perpendicular to said axesbeing spacedapal't. and a common inlet. flume for said turbines."i

3Q Inl combination. two opposittl'v rotat'able. ,turbinesA liavingtrparallel' vertie'al axes ab nt" |titaft'ioii."tl|e centralhorizontalturbine f L'planes"lieitig'r noneoineiilent.'anda cornlnmn ifr']` te,n"inlet` thr'nr-Ifor silitl turbines. 'ie f 5 "4. licombination. 'fwd oppositelfv rotatabletnrbinesliavi|iig"huntoineideutcentral discharge flunle 14.

planes perpendicular to their axes of rotation, and a draft. tube foreach of said turbines, said draft tubes being of substantiall'yequahvertieal `len y s,

l5.In Combination, two oppositely rotatable vertical turbines, one ofsaid turbines beiner located at a higher level than the other, and acommon intake flume for supplying fluid to said turbines in parallel.

6. In eonibination, two oppositely rotatable vertical turbines, one ofsaid turbines being located at a higher level than the other, and adraft tube for each of said turbines, saiddraft tubes being ofsubstantially equal vertical lengths.

7. In combination, two oppositely rotatable turbines havingnoircoincident central planes perpendicular to their axes of rotation, acommon inlet. flume for said turbines, and a draft tube for each of saidturbines, said draft tubes being of substantially equal verticallengths.

8. In combination, two oppositely rota table vertical turbine-s havingnoneoinei dent central horizontal planes,a common inlet fiume for saidturbines. and a draft tube for each of said turbines, said draft tubesbeing: of substantially equal vertical lengths.

l two singleturbinds rotatable about different axes and havin'gnonicoincident central planes v..t'fz-rpendieular to said axes, and a commoninlet flume forsaid 9. lu combination.

turbines'.

10. In combination, two turbines rotatable about different` axes, agenerator-,direct e'oi'ineeted to each f said turbines, a cominon inlettlur'ney for guidingV fluid between said axes. and a spr -:governorcommon to 'said turbines.

1l. In combination. tivo single turbines rotatable about. differentaxes, said turbines having;r non-eoi1u`:ide.nt` central planes"perpendieular to said axes. and a common inlet flume for guidinrf` Huidbetween said axes.

12. In combination, two oppositiely reta1` table vertical turbineslravingparallel axes of rotation, said turbinesh'avingnon-coincidentcentral horizontal lanes, ibeohiinon open inlet: flume'forgudingitluidbottveen said axes, and a` draft tube for eitohoflsadturbinesfsaidl draft. tubes bei'rig ofsubstan 1H'. In combination. twooppsitet' 1 rotatable single vertical Francisturbines.` raving lparallelaxeflrotatiottiene otsaidturbine 14. In cornbinatibn, .table single ,reiYicalY,,ltlxl'ahcisj'turbinesi the tlduinst'reat "tui-til ne beinglocated at ahigli'eli"v level` than theipsheani trttl`ng-,initllteommitin` iiletdmhetor said turbines." i, l i

e irftn emi'tbinatiou.a'ainlet tluibegjand two single turbines withinsaid fl'um,

bij

lltl

turbines being both horizontally and vertically 0n opposite sides of thecenten/line of said flume.

16. In combination, an open inlet flume,

and two oppositel rotatable vertical turbines within said ume, saidturbines being both horizontally und vertically on opposite si es of thecenter lino of said fiume.

n testimon whereof, the signature of the inventor is a xed hereto. A

ARNOLD PFAU.

